Sökning: "PFI beating"

Hittade 1 uppsats innehållade orden PFI beating.

  1. 1. The effect of charged groups on the beatability of pulp fibres

    Uppsats för yrkesexamina på grundnivå, KTH/Skolan för kemivetenskap (CHE)

    Författare :Erik Melander; [2011]
    Nyckelord :Kraft pulp; softwood; carboxymethylation; swelling; PFI beating; refining; beatability; charged groups;

    Sammanfattning : The purpose of this bachelor thesis was to investigate how charged groups within the pulp fibre affect the beatability and the strength of the papers. To obtain different levels of charges on the pulp it was carboxymethylated. The different pulp samples were beaten to different degrees to investigate how charges interact with the beating. LÄS MER